Sakana Namazu vs Solar Pro 4: Specs & Benchmark Comparison

Sakana Namazu is developed by Sakana AI, while Solar Pro 4 comes from Upstage. Both were released in August 2026.

The two models share 2 published benchmarks. Sakana Namazu leads on 2 of them. The widest gaps are on MMLU-Pro, where Sakana Namazu scores 90.3% against 86.3%; AIME 2026, where Sakana Namazu scores 96.7% against 95.3%. Averaged across everything we track, Sakana Namazu sits at 92.4% and Solar Pro 4 at 69.9%.

Solar Pro 4 is the cheaper API at $0.30 per million input tokens and $1.20 per million output tokens, roughly 3 times cheaper than Sakana Namazu at $0.95 and $4. Solar Pro 4 takes the larger context window at 524K tokens, compared with 256K for Sakana Namazu. Sakana Namazu accepts text and images as input, while Solar Pro 4 accepts text.

CharacteristicSakana NamazuSolar Pro 4
CompanySakana AIUpstage
Release DateAugust 3, 2026August 6, 2026
Parameters——
MultimodalYesNo
Context (input)256K524K
Context (output)256K131K
Input Price / 1M$0.95$0.30
Output Price / 1M$4.00$1.20
Average Score92.4%69.9%
Benchmarks
MMLU-Pro90.3%86.3%
AIME 202696.7%95.3%

Visual Benchmark Comparison

Sakana Namazu
Solar Pro 4
MMLU-Pro0.9 vs 0.9
0.9
0.9
AIME 20261.0 vs 1.0
1.0
1.0

Verdict

Solar Pro 4 leads in 2 out of 4 comparison categories.

Overall Performance

Both models show comparable average scores: Sakana Namazu — 0.9, Solar Pro 4 — 0.7.

API Cost

Solar Pro 4 is 3.3x cheaper: input $0.30/1M vs $0.95/1M tokens.

Context Window

Solar Pro 4 supports a larger context: 524K vs 256K tokens.

Recency

Both models were released around the same time: 8/3/2026 and 8/6/2026.

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Frequently Asked Questions

Which is better for coding — Sakana Namazu or Solar Pro 4?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — Sakana Namazu or Solar Pro 4?
Solar Pro 4 is cheaper for input: $0.30 per 1M tokens vs $0.95.
Which has a larger context window — Sakana Namazu or Solar Pro 4?
Solar Pro 4 supports a larger context: 524,288 tokens vs 256,000.

The Sakana Namazu and Solar Pro 4 comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Sakana Namazu or Solar Pro 4 page. See also the complete list of AI model comparisons.